Ever since upgrading to Zen 6.5.1, we've been experiencing a high number
of Failed Logins per Hour in iManager on a handful of servers.

On two servers it's a small number of workstation objects, and on others
it's their Server Package.

One of the server packages I re-created from scratch, hoping it was just
that package, but that didn't fix it.

Each of these servers hold a replica of their own partition.
DS version on all of them is